| Title: | Photo, thermal and photothermal activity of ▫$TiO_2$▫ supported Pt catalysts for plasmon-driven environmental applications |
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| Authors: | ID Žerjav, Gregor (Author)
ID Say, Zafer (Author)
ID Zavašnik, Janez (Author)
ID Finšgar, Matjaž (Author)
ID Langhammer, Christoph (Author)
ID Pintar, Albin (Author) |
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| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S221334372300948X?via%3Dihub
 PDF - Presentation file, download (2,98 MB)
MD5: 2719ABDBB9E4CC33749D4E81FE7274AB
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  KI - National Institute of Chemistry
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| Abstract: | TiO2+Pt plasmonic solids with 1 wt% Pt and different TiO2 supports (anatase nanoparticles (TNP), polycrystalline nanorods (a-TNR) and single-crystal anatase nanorods (TNR)) were synthesized using the wet impregnation technique and tested as photo, thermal and photothermal catalysts in gas-solid and gas-liquid-solid reactions. Due to the different charges of the TiO2 support surfaces, Pt particles with different sizes, crystallinities and degrees of interaction with the TiO2 supports were formed during the synthesis. The heights of the Schottky barrier (SBH) were 0.38 eV for the a-TNR+Pt, 0.41 eV for the TNP+Pt, and 0.50 eV for the TNR+Pt samples, respectively. The low visible-light-triggered photocatalytic activity of the TNR+Pt catalyst toward the oxidation of water-dissolved bisphenol A (BPA) is attributed to its high SBH and active site deactivation due to the adsorption of BPA and/or BPA oxidation products. The highest photothermal catalytic H2-assisted NO2 reduction rate was expressed by the TNR+Pt catalyst. This can be ascribed to the presence of a narrow particle size distribution of small Pt particles, the absence of the Pt catalysed reduction of the TNR support at higher temperatures, and the lower rate of re-injection of “hot electrons” from the TNR support to the Pt particles. |
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| Keywords: | heterogeneous photocatalysis, titanium dioxide, plasmonic noble metal, platinum particles, visible light illumination, Schottky barrier height, bisphenol A, wastewater treatment, NOx abatement, air cleaning, microreactor, thermal catalysis, photothermal catalysis |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 01.06.2023 |
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| Publisher: | Elsevier B.V. |
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| Year of publishing: | 2023 |
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| Number of pages: | str. 1-12 |
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| Numbering: | Vol. 11, iss. 3, [article no.] 110209 |
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| Source: | Journal of environmental chemical engineering |
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| PID: | 20.500.12556/DiRROS-16656  |
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| UDC: | 544.3/.4 |
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| ISSN on article: | 2213-3437 |
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| DOI: | 10.1016/j.jece.2023.110209 |
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| COBISS.SI-ID: | 153849603 |
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| Copyright: | © 2023 The Author(s). Published by Elsevier Ltd. |
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| Note: | Nasl. z nasl. zaslona;
Soavtorji iz Slovenije: Janez Zavašnik, Matjaž Finšgar, Albin Pintar;
Opis vira z dne 30. 5. 2023;
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| Publication date in DiRROS: | 23.06.2023 |
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| Views: | 847 |
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| Downloads: | 451 |
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